To Whom It May Concern: 

[Personalization is important!]

I love this show and think it is one of the best series on television today.

Please air the remaining eight episodes of season two in January of 2004.
We have waited over a year to see this season and it would be a shame to delay
this brilliant show any further.

I strongly urge you to give this show a season three renewal as I will tune in
every week that Jeremiah is on. I enjoy watching the reruns as well because I
discover something new with every viewing. That is how good this show is!

I appreciate you taking the time to read my letter and producing this quality
show so far.

Thank you, 
[Your Name]
[Demographic Information -- like location, age, occupation, etc.]